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Finding the Fourth Proportional to 666,064.40, 999,096.60 and 621,827.60

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Solution

The fourth proportional to 666,064.40, 999,096.60 and 621,827.60 is: 932,741.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,064.40 : 999,096.60 = 621,827.60 : x
  2. Step 2: Convert to fraction form
    666,064.40/999,096.60 = 621,827.60/x
  3. Step 3: Cross multiply
    666,064.40x = 999,096.60 × 621,827.60
  4. Step 4: Simplify right side
    666,064.40x = 621,265,840,946.16
  5. Step 5: Solve for x
    x = 621,265,840,946.16/666,064.40
  6. Step 6: Final answer
    x = 932,741.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.